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Accounting Policies (Impairment of Long-Lived Assets) (Narrative) (Details) (USD $)	3 Months Ended	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2013
Accounting Policies Impairment Of Long-Lived Assets Narrative Details
Impairment of Long-lived Assets	$ 0	$ 0

- Definition

The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).

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